SCSW_ACTL_START_PEND
sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND;
scsw->actl = SCSW_ACTL_START_PEND;
scsw->actl = SCSW_ACTL_START_PEND;
!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_START_PEND))
sch->schib.scsw.eadm.actl |= SCSW_ACTL_START_PEND;
sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND;